藏北高寒草地土壤有机质化学组成对土壤蛋白酶和脲酶活性的影响

马书琴, 汪子微, 陈有超, 鲁旭阳

Effect of soil organic matter chemical compositions on soil protease and urease activity in alpine grassland soils in Northern Xizang, China

MA Shu-Qin, WANG Zi-Wei, CHEN You-Chao, LU Xu-Yang

表2 藏北不同高寒草地类型土壤酶活性(平均值±标准误)

Table 2 Enzyme activity in different alpine grassland soils in Northern Xizang, China (mean ± SE)

高寒草地类型 Alpine grassland type 蛋白酶 Protease (μg·g-1·h-1) 脲酶 Urease (mg·kg-1·h-1) 高寒草甸 Alpine meadow 170.20 ± 55.28Aa 96.25 ± 52.08Aa 高寒草原 Alpine steppe 117.84 ± 36.68Aab 130.20 ± 41.59Aa 高寒荒漠 Alpine desert 85.60 ± 10.02Abc 80.07 ± 1.97Aa 高寒草甸草原 Alpine meadow steppe 79.97 ± 43.97Abc 68.53 ± 6.22Aa 高寒荒漠草原 Alpine desert steppe 31.00 ± 20.81Bc 85.86 ± 14.31Aa